oj.uz

Submission #418215

# Submission time Handle Problem Language Result Execution time Memory
418215 2021-06-05T08:25:40 Z Kevin_Zhang_TW Arranging Tickets (JOI17_arranging_tickets) C++17
100 / 100
 3326 ms 18312 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif

const int MAX_N = 300010;
const ll inf = 1ll << 55;

int n, m;

vector<pair<int,ll>> rc[MAX_N];

int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n >> m;
	vector<tuple<int,int,int>> req(m);
	for (auto &[l, r, c] : req) {
		cin >> l >> r >> c;
		if (l > r) swap(l, r);
		//assert(c == 1);
	}

	vector<ll> sum(n + 10);

	for (auto [l, r, c] : req)
		sum[l] += c, sum[r] -= c;

	for (auto [l, r, c] : req) rc[l].pb(r, c);

	auto cal = [&](ll mx) {
		// first is right end, second is count
		priority_queue<pair<int,ll>> pq;
		vector<ll> pfsum(sum);

		ll use = 0;
		for (int i = 1;i <= n;++i) {
			for (auto [r, c] : rc[i]) 
				pq.emplace(r, c);

			pfsum[i] += pfsum[i-1];

			while (pfsum[i] > mx) {
				assert(pq.size());
				auto [r, c] = pq.top(); pq.pop();
				ll req = min(c, (pfsum[i] - mx + 1) / 2);
				use += req;
				pfsum[i] -= req * 2;
				pfsum[r] += req * 2;
				if (req < c) pq.emplace(r, c - req);
			}
		}

		return mx + use;
	};

	ll res = inf;

	for (int i : {0, 1}) {
		ll l = 0, r = 1e14 / 2, mid;
		while (l < r) {
			mid = l + r >> 1;
			ll x = (mid*2) + i, y = x + 2;
			if (cal(x) <= cal(y))
				r = mid;
			else
				l = mid+1;
		}
		chmin(res, cal(l*2 + i));
	}

	cout << res << '\n';
	
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 4 ms 7316 KB Output is correct
13 Correct 4 ms 7244 KB Output is correct
14 Correct 4 ms 7244 KB Output is correct
15 Correct 4 ms 7244 KB Output is correct

Subtask #2
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 4 ms 7316 KB Output is correct
13 Correct 4 ms 7244 KB Output is correct
14 Correct 4 ms 7244 KB Output is correct
15 Correct 4 ms 7244 KB Output is correct
16 Correct 6 ms 7372 KB Output is correct
17 Correct 6 ms 7276 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 6 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 6 ms 7372 KB Output is correct
22 Correct 6 ms 7332 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 7 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 4 ms 7316 KB Output is correct
13 Correct 4 ms 7244 KB Output is correct
14 Correct 4 ms 7244 KB Output is correct
15 Correct 4 ms 7244 KB Output is correct
16 Correct 6 ms 7372 KB Output is correct
17 Correct 6 ms 7276 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 6 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 6 ms 7372 KB Output is correct
22 Correct 6 ms 7332 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 7 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct
28 Correct 26 ms 7620 KB Output is correct
29 Correct 27 ms 7632 KB Output is correct
30 Correct 29 ms 7600 KB Output is correct
31 Correct 26 ms 7632 KB Output is correct
32 Correct 24 ms 7636 KB Output is correct
33 Correct 28 ms 7628 KB Output is correct
34 Correct 25 ms 7624 KB Output is correct
35 Correct 25 ms 7628 KB Output is correct
36 Correct 25 ms 7628 KB Output is correct
37 Correct 25 ms 7628 KB Output is correct
38 Correct 21 ms 7756 KB Output is correct
39 Correct 20 ms 7640 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 4 ms 7316 KB Output is correct
13 Correct 4 ms 7244 KB Output is correct
14 Correct 4 ms 7244 KB Output is correct
15 Correct 4 ms 7244 KB Output is correct
16 Correct 6 ms 7372 KB Output is correct
17 Correct 6 ms 7276 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 6 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 6 ms 7372 KB Output is correct
22 Correct 6 ms 7332 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 7 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct
28 Correct 26 ms 7620 KB Output is correct
29 Correct 27 ms 7632 KB Output is correct
30 Correct 29 ms 7600 KB Output is correct
31 Correct 26 ms 7632 KB Output is correct
32 Correct 24 ms 7636 KB Output is correct
33 Correct 28 ms 7628 KB Output is correct
34 Correct 25 ms 7624 KB Output is correct
35 Correct 25 ms 7628 KB Output is correct
36 Correct 25 ms 7628 KB Output is correct
37 Correct 25 ms 7628 KB Output is correct
38 Correct 21 ms 7756 KB Output is correct
39 Correct 20 ms 7640 KB Output is correct
40 Correct 1858 ms 18244 KB Output is correct
41 Correct 1917 ms 18312 KB Output is correct
42 Correct 1710 ms 17932 KB Output is correct
43 Correct 1778 ms 17996 KB Output is correct
44 Correct 1812 ms 18136 KB Output is correct
45 Correct 1675 ms 17956 KB Output is correct
46 Correct 1668 ms 17640 KB Output is correct
47 Correct 1755 ms 17624 KB Output is correct
48 Correct 1627 ms 17508 KB Output is correct
49 Correct 1559 ms 16612 KB Output is correct
50 Correct 1471 ms 16924 KB Output is correct
51 Correct 1609 ms 16672 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 4 ms 7244 KB Output is correct
3 Correct 4 ms 7244 KB Output is correct
4 Correct 4 ms 7244 KB Output is correct
5 Correct 4 ms 7244 KB Output is correct
6 Correct 4 ms 7244 KB Output is correct
7 Correct 4 ms 7244 KB Output is correct
8 Correct 4 ms 7244 KB Output is correct
9 Correct 4 ms 7244 KB Output is correct
10 Correct 4 ms 7244 KB Output is correct
11 Correct 4 ms 7244 KB Output is correct
12 Correct 4 ms 7316 KB Output is correct
13 Correct 4 ms 7244 KB Output is correct
14 Correct 4 ms 7244 KB Output is correct
15 Correct 4 ms 7244 KB Output is correct
16 Correct 6 ms 7372 KB Output is correct
17 Correct 6 ms 7276 KB Output is correct
18 Correct 6 ms 7372 KB Output is correct
19 Correct 6 ms 7372 KB Output is correct
20 Correct 6 ms 7372 KB Output is correct
21 Correct 6 ms 7372 KB Output is correct
22 Correct 6 ms 7332 KB Output is correct
23 Correct 7 ms 7372 KB Output is correct
24 Correct 7 ms 7372 KB Output is correct
25 Correct 6 ms 7372 KB Output is correct
26 Correct 6 ms 7372 KB Output is correct
27 Correct 6 ms 7372 KB Output is correct
28 Correct 26 ms 7620 KB Output is correct
29 Correct 27 ms 7632 KB Output is correct
30 Correct 29 ms 7600 KB Output is correct
31 Correct 26 ms 7632 KB Output is correct
32 Correct 24 ms 7636 KB Output is correct
33 Correct 28 ms 7628 KB Output is correct
34 Correct 25 ms 7624 KB Output is correct
35 Correct 25 ms 7628 KB Output is correct
36 Correct 25 ms 7628 KB Output is correct
37 Correct 25 ms 7628 KB Output is correct
38 Correct 21 ms 7756 KB Output is correct
39 Correct 20 ms 7640 KB Output is correct
40 Correct 1858 ms 18244 KB Output is correct
41 Correct 1917 ms 18312 KB Output is correct
42 Correct 1710 ms 17932 KB Output is correct
43 Correct 1778 ms 17996 KB Output is correct
44 Correct 1812 ms 18136 KB Output is correct
45 Correct 1675 ms 17956 KB Output is correct
46 Correct 1668 ms 17640 KB Output is correct
47 Correct 1755 ms 17624 KB Output is correct
48 Correct 1627 ms 17508 KB Output is correct
49 Correct 1559 ms 16612 KB Output is correct
50 Correct 1471 ms 16924 KB Output is correct
51 Correct 1609 ms 16672 KB Output is correct
52 Correct 3326 ms 18036 KB Output is correct
53 Correct 3009 ms 17908 KB Output is correct
54 Correct 3194 ms 18044 KB Output is correct
55 Correct 3166 ms 17924 KB Output is correct
56 Correct 2835 ms 17928 KB Output is correct
57 Correct 3016 ms 17552 KB Output is correct
58 Correct 3125 ms 17544 KB Output is correct
59 Correct 1770 ms 16480 KB Output is correct